Do I need to specify async for the route if the controller has an async function?

Question

Node.js

Do I need to specify async for the route if the controller has an async function?

// routes.js
const localesController = require('../controllers/locales');
locales.get('/', localesController.getLocales);

// getLocales
module.exports = async (req, res) => {

Answer 1

express is waiting for a synchronous function with a synchronous error, so it doesn't matter how you specify it...